TM-2030, and charging will not be correctly controlled by the TM-2030.
b. Connect the wire from the b terminal to large green connector on the SC-2030 marked BATTERY
+.
c. Connect two solar panel wires to the two large green terminals on the SC-2030 identified on the SC-2030
as “SOLAR” . Be sure to observe correct polarity: + from panels to terminal marked SOLAR +, and minus to
terminal marked SOLAR “ —“.
4.4.8
Connect communication connector at TM-2030 end if not already connected.
4.4.9
Verify all wiring and polarities (plus and minus not reversed). Then close the switches or circuit breakers.
4.5 Verifying SC-2030 operation and programming charging
parameters.
NOTE: References to “P” numbers such as P4, P16, etc. refer to user programmable values
.
●
When solar is shining on the panels with more than 0.5 amps the amber light on the SC-2030 should be ON. When flashing
every half second, it is in over current protection and charger is limiting current to a safe value for charging.
4.5.1 If the SC-2030 is connected to a TM-2030 while sun is shining on panels:
Check the green light on the SC-2030
Solar Charge Controller. If the two units are communicating it should be ON most of the time—but possibly
occasionally blink off.
If the green LED is off or mostly off, except for occasional blinks on, check the communication cable
again, check that the TriMetric is powered and operating properly, and also verify that the phone cable contacts are crossed as
shown in the lower right-hand corner of Figure 1. Also, there must be at least a small amount of solar current coming from the
solar panels.
4.5.2 If the SC-2030 is operating without the TriMetric
: If at least a little solar energy is coming in, the amber light will be
on, but the green LED will be
usually off
—but every 10 seconds or so will blink on to indicate the charge state as indicated in
next section
4.5.3
.
4.5.3 The flashing green light on the SC-2030 will tell you what charging state the SC-2030 is:
The following sequence
will be repeated every 10 seconds or so:
●
Flashing once, the charger is in the first stage or “bulk” charging.
●
Flashing twice, charging at the absorb voltage
●
Flashing 3 times indicates floating mode.
●
Flashing 4 times: in higher voltage “finish,” limited current charging. (With TM-2030 connected only)
●
Flashing 5 times: at maximum voltage “finish,” limited current charging. (With TM-2030 connected only)
●
Flashing 6 times: Was in float, now discharging but still at least 98% full. (With TM-2030 connected only)
●
Flashing zero times: Discharging and less than 98% ful
l
(With TM-2030 connected only)
4.5.4
L
ast important step:
Programming the SC-2030
for your battery system when TM-2030 is connected.
Easy way
: Most people will choose the easy way to enter this data. This method automatically enters 8 charging parameters to
control the charging, and also provides proper monitoring in most cases. This requires the following three steps:
STEP 1
. Change the operational level in P7. Repeat the following steps for any program number.
a. Press "SELECT" and hold it down until "P1" appears in display. Release.
b. Press SELECT repeatedly to get to "P7" (to select operational level).
c. Press SELECT and RESET together, momentarily, to get 3 lights to flash.
d. Use RESET to change display until operational level "L3" or “L4” (for 4 stage charging) shows.
e. Press SELECT once, to get out of program mode. Press select to continue to the next program number (P8-P21).
STEP 2
. Determine the battery system capacity, in amp hours. To determine the system capacity you need to know the capacity
of each
battery
in amp hours—then multiply by the number of series strings in your system. The 20-hour value specified for
capacity is appropriate. The default value automatically entered by step 1 is for 220 amp hours.
If your system capacity is not
between 200-240 amp hours, change value by entering the correct value into program P3 in the TM-2030
.
Always do
this after step 1 or this data will get overwritten. To program P3: similar to steps a - d. above, except go to P3 instead of
P7. For exact instructions, see Section 5.
STEP 3
: In many RV’s or other installations, while charging the voltage to items connected to the battery may exceed
the maximum safe limit under cold conditions.
Although this may not provide ideal battery care, you may adjust P8 to the
maximum allowed charging voltage
. This will override any other programmed settings.
Early units do not have this option.
Call Bogart Engineering for upgrade.